Churn.



L. HOPER. j

GHURN.

APPLICATION FILED JULYS, 1910.

1,037,624. Patented Sept. 3,1912.

ATTOR NEYS.

coLUMlxA PLANOGRAPVH C0.. wAsHxNuTON. D. c.

UNITED STATES PATENT OFFICE.

LOUIS HOFER, 0F PITTSBURGH, PENNSYLVANIA.

CHURN.

To all lwhom t may concern.'

Be it lino-wn that I, Louis Hornn, a subject of the Emperorl ofAustria-Hungary, residing at N. S. Pittsburgh.l in the county ofAllegheny and State of Pennsylvania, have invented certain new anduseful Improvements in Churns, of which the following is aspecification, reference being had therein to the accompanying drawing.

This invention is an improvement in my patent on churns granted July 5,1910, No. 963,560.

The present invention has for its object to provide novel means wherebythe churn can be rapidly operated, thus reducing the time heretoforerequired in manufacturing butter, ice cream and other mattei' that ismade by churning, mixing or commingling ingredients.

I attain the above object by a mechanical construction that will behereinafter specilically described and then claimed, and reference willnow be had to the drawing forming a part of this specification, whereinFigure 1 is a side elevation of the churn, Fig. 2 is a vertical crosssectional view of the same, Fig. 3 is a plan of the churn, Fig. 4tis ahorizontal sectional view of the same, Fig. 5 is an enlarged elevationof the operating means partly broken away and partly in section and Fig.6 is a side elevation illustrating the dasher shaft and its connections.Fig. 7 is a perspective View of a detached bearing.

In devising the present invention, I have aimed to provide means wherebythe churn can be used as an ice cream freezer or machine for agitat-ingingredients while they are frozen, and to this end, I provide an o-utertub or receptacle for the churn and partition olf a portion of the outertub or receptacle for the operating means of the churn.

The churn comprises an outer tub or receptacle A rectangular in crosssection and having two opposite sides thereof provided with handles Bwhereby the tub or receptacle can be easily handled. Secured to thebottom C of the tub or receptacle A by screws D or other fastening meansare lateral lugs E, carried by the lower edges of the receptacle 1 shownand described in my previous patent. The tub or outer receptacle A islarger than the receptacle 1 thus providing a space F in which ice oranother refrigeratory agent can be packed for freez- Specication ofLetters Patent.

Application filed July 8, 1910.

Patented Sept. 3, 1912. Serial No. 571,028.

ing matter as it is agitated within the receptacle 1.

I quote as follows from my previous pat-- ent:

The receptacle is preferably made of one piece of sheet metal having thevertical edges thereof soldered, brazed or otherwise connected to form arectangular structure, secured in the bottom of this structure is abottom plate 2 having depending flanges 3 adapted to be soldered orotherwise connected to the inner sides of the walls of the receptacle.

4 denotes a lid or cover adapted to fit upon the upper edges of thereceptacle, said lid or cover having a depending flange 5 extending intothe upper end of said receptacle, and furthermore, a handle 6 wherebythe lid or cover can be easily handled.

8 denotes a shaft rectangular in cross section for a greater part of itslength, one end of the shaft being cylindrical, as at 9 and providedwith a. detachable circular head 10 adapted to be held upon thecylindrical portion of the shaft by a set screw or other fasteningmeans11. The opposite end of the shaft is provided with a cylindrical portion12 and the extreme end of the shaft is threaded, as at 13. Detachablymounted upon the cylindrical portion 12 by a set screw 14 is a circularhead 15, this head. being provided with an opening sufficiently large toclear the rectangular portion 16 of the shaft when mounting the headupon the cylindrical portion.

17 denotes a bearing having a slot 18 with one end thereof open, saidbearing being riveted or otherwise secured, as at 19 to the inner sideof the rear wall of the receptacle 1. The bearing is adapted to receivethe circular headv 10 of the shaft 8. The front wall of the receptacle 1is provided with an opening 20 through which the cylindrical portion 12of the shaft 8 is adapted to extend, and the head 15 is mounted upon theshaft whereby it will engage the outer side of the front wall of thereceptacle 1. The shaft is held in place by a locking lever 21 having anolf-set portion 22 provided with a slot 23. The locking lever 21 ispivotally connected to the front wall of the receptacle, as at 211, andthe slot 23 is adapted to provide clearance for the cylindrical portion12 of the shaft while the olf-set portion 22 provides clearance for thehead 15. The outer end of the locking lever 21 is bent to form a handleand is adapted to engage in a bracketl 26 secured to the front Wall ofthe receptacle.

The cylindrical end of the shank is pro vided with a small gear wheel Gmeshing with a large gear wheel H mounted upon a shaft I journaled inthe wall of the receptacle 1 and the wall of the tub or outer receptacleA, said shaft having the outer end thereof provided with a threadedsocket J to receive the threaded shank K of a shaft L, said shaft havingthe end thereof provided with a crank or handle M. lt is through themedium of the gear wheels G and H that the shaft 8 is rapidly rotated.

The dasher or agitator comprises cross arms 31 and 32, the inner sidesof the arms 31 and the outer sides of the arms 32 being provided withface plates 33 and extending through said face plates and the arms arerivets, bolts or other fastening means 3ft adapted to hold the arms 31and 32 in assembled position. The arms and plates are provided withlongitudinallyT alining rectangular openings 36 to receive therectangular shaft 8. The outer ends of the arms 31 and 3Q are connectedby transverse blades 3G, the blades having the ends thereof flanged, asat 37, and riveted or otherwise secured to the outer ends of the arms 31and S2, as at 3S, with the outer edges of the blades protruding beyondthe ends of the arms. Two oppositely disposed blades are provided withopenings 39 intermediatey the ends thereof while the other blades areprovided with a plurality of openings These openings are adapted' tofacilitate the commingling and agitation of the contents of thereceptacle when the dasher or agitator is revolved within thereceptacle.

The opening 20 of the front wall of the receptacle is of a sufl'licientsize to allow the rectangular portion of the shaft 8 to enter thereceptacle and with the dasher or agitator held within the receptacle7the shaft can be extended through the openings 35, the head 10 placedupon the end of the shaft and then seated in the bearing 17. Since thecylindrical portion 12 of the shaft is of a less diameter than theopening 20, the shaft can be moved sufficiently to allow the head 10 tobe placed upon the end of the shaft and then in the bearing. The head 15can then be clamped in position, the locking lever 21 closed and thecrank 26 placed upon the end of the shaft. The churn is then incondition to be used.

@ne of the walls. of the tub or receptacle it can be provided with aspigot or faucet O whereby water or other liquid matter can be drainedfrom the compartment F.

The compartment F is provided with partitions R and @to prevent therefrigeratory agent from interfering with the gear wheels G and H, thesepartitions extending from the bottom C of the tub A to the upper edgesof the receptacle l.

A device of the character describedl coniprising an open-top casing, achurn body seated therein and secured to ther bottom of the casing in aposition to space it from the side walls of the casing, said churn bodyhaving removable cover, a dasher structure within the churn body androtative on a horizontal axis, means projecting through the casing forrotating the dasher structure, said means including mechanism locatedbetween the opposing walls ofthe casing and the churnbody, andpartitions between said opposing walls for segregating the gearmechanism from the remaining annular space surrounding theI churn body.

In testimony whereof I aiiix my signature 1 inthe presence of twowitnesses LOUIS HOFER.

lVitnesses z KARL H. BUTLER, EVA A. MILNE.

Copies of' this patent may be obtained for ve cents each, by addressingthe Commissioner of atents. Washington, D. C.

